
What are some side effects that I need to call my doctor about right away?
Substitution of cellulose with ethyl-, methyl-, hydroxypropyl-, hydroxypropyl-methyl- and carboxymethyl groups may increase the resistance of cellulose to degradation. Resistance increases with the degree of substitution and is greatest when the substituent groups are evenly dispersed along the polymer chain. Most cellulose of the additive under assessment will therefore pass the intestine undigested and will excreted unchanged via faeces. Even when a high cellulolytic activity is present, as in the rumen, ethyl cellulose remains sufficiently resistant to degradation to be used as enteric coatings designed to protect methionine from rumen release (EFSA FEEDAP Panel, 2012c). Subsequent degradation in the post-ruminal tract is most likely to lead to high molecule weight breakdown products, with little probability of absorption.
Answer: HPMC produced through solvent methods uses solvents such as toluene and isopropanol. If the washing process is not thorough, there may be some residual odor.


In poultry, most data in the literature tend to demonstrate that the cellulose complex from plant feedingstuffs that exhibits high crystallinity and water insolubility is not digested (Janssen and Carré, 1985).


What else can hydroxypropyl methylcellulose be called?
HPMC

